نتایج جستجو برای: binary oxide

تعداد نتایج: 293533  

2001
Alex Ulitsky

Simulations of argon diffusion and of picosecond recombination of nitric oxide to myoglobin are presented. Three computational methods are compared, usual classical trajectories, mean field trajectories, and mean field trajectories with a binary collision correction. The ligand mobility and the spatial distribution of the ligand in the protein interior a re examined. Time-dependent properties c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

علم ترمودینامیک و خواص انتقالی در فرآیندهای طراحی وکاربردی ضروری هستند. دانسیته و ویسکوزیته مـخلوطهای چـند تایی در بـسیاری از مـحاسبات مهندسی شیمی مانند انتقال شار، گرما و انتقال جرم مورد نیاز است. دانسیته و ویسکوزیته مـخلوطهای دوتایی وسـه تایی تشـکیل شده از :کلروبنزن، پیریدین وتولوئن دردمـاهای 15/ 288 درجه کلوین تا 15/ 313 درجه کلوین در فشار جو اندازه گیری شد. از این داده های تجربی برای محاس...

2014
Guangqiang Han Yun Liu Lingling Zhang Erjun Kan Shaopeng Zhang Jian Tang Weihua Tang

New ternary composites of MnO2 nanorods, polyaniline (PANI) and graphene oxide (GO) have been prepared by a two-step process. The 100 nm-long MnO2 nanorods with a diameter ~20 nm are conformably coated with PANI layers and fastened between GO layers. The MnO2 nanorods incorporated ternary composites electrode exhibits significantly increased specific capacitance than PANI/GO binary composite in...

Journal: :Physical chemistry chemical physics : PCCP 2015
Kunfeng Chen Congting Sun Dongfeng Xue

Advances in materials have preceded almost every major technological leap since the beginning of civilization. On the nanoscale and microscale, mastery over the morphology, size, and structure of a material enables control of its properties and enhancement of its usefulness for a given application, such as energy storage. In this review paper, our aim is to present a review of morphology engine...

Journal: :Chemical communications 2015
Li Peng Jianling Zhang Shuliang Yang Buxing Han Xinxin Sang Chengcheng Liu Xue Ma Guanying Yang

Here we demonstrate the in situ formation of ultra-small gold nanoparticles (<2 nm) finely dispersed on a binary solid carrier, i.e. a mesoporous SiO2 coated graphene oxide (GO) nanosheet. The as-synthesized Au-SiO2-GO composite has shown high catalytic activity and reusability for chemical reactions under mild conditions.

2018
Wenxian Gou Matthew G. Siebecker Zimeng Wang Wei Li

Trace metals (e.g. Ni, Zn) leached from industrial and agricultural processes are often simultaneously present in contaminated soils and sediments. Their mobility, bioavailability, and ecotoxicity are affected by sorption and cosorption at mineral/solution interfaces. Cosorption of trace metals has been investigated at the macroscopic level, but there is not a clear understanding of the molecul...

2013
Shimeng Yu Bin Gao Zheng Fang Hongyu Yu Jinfeng Kang H.-S. Philip Wong

Hardware implementation of neuromorphic computing is attractive as a computing paradigm beyond the conventional digital computing. In this work, we show that the SET (off-to-on) transition of metal oxide resistive switching memory becomes probabilistic under a weak programming condition. The switching variability of the binary synaptic device implements a stochastic learning rule. Such stochast...

2004
A. MEMON M. N. KHAN K. E. RAJAB

The frequency-dependent complex relative permittivities of binary semiconducting V205-P205 glasses containing various amounts of vanadium have been measured at ambient temperature in the infrared region by power reflection spectroscopy. The measured values of the static constant, ~0, and high frequency constant, s=, are used to calculate the small polaron binding energy, Wp, and the activation ...

Journal: :Chemical communications 2013
Takahiko Ichiki Yutaka Matsuo Eiichi Nakamura

A new type of acceptor-donor(2) dyad system containing two magnesium porphyrin molecules and a fullerene molecule is much more stable than the magnesium porphyrin itself. When it is fabricated into a binary system using imidazole carboxylic acid as a linker to indium tin oxide, the molecule effects efficient photocurrent generation that surpasses the device using the corresponding zinc porphyrin.

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2001
R L Whitby W K Hsu C B Boothroyd P K Fearon H W Kroto D R Walton

An insulated nanotube wire is formed by the binary phase of layered tungsten disulphide and carbon nanotubes (shown in the HRTEM image) generated by the sulphidization of tungsten oxide coated multiwalled carbon nanotubes at 900 °C. Thermogravimetric analysis shows that the tungsten disulphide coat acts as an antioxidant.

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